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Practical Microservices with Dapr and .NET

You're reading from Practical Microservices with Dapr and .NET A developer's guide to building cloud-native applications using the Dapr event-driven runtime

Product type Paperback

Published in Dec 2020

Publisher Packt

ISBN-13 9781800568372

Length 280 pages

Edition 1st Edition

Languages

C#

Tools

.NET

Concepts

Microservices

Author (1):

Davide Bedin

View More author details

Table of Contents (16) Chapters

Preface

1. Section 1: Introduction to Dapr

2. Chapter 1: Introducing Dapr FREE CHAPTER

3. Chapter 2: Debugging Dapr Solutions

4. Section 2: Building Microservices with Dapr

5. Chapter 3: Service-to-Service Invocation

6. Chapter 4: Introducing State Management

7. Chapter 5: Publish and Subscribe

8. Chapter 6: Resource Bindings

9. Chapter 7: Using Actors

10. Section 3: Deploying and Scaling Dapr Solutions

11. Chapter 8: Deploying to Kubernetes

12. Chapter 9: Tracing Dapr Applications

13. Chapter 10: Load Testing and Scaling Dapr

14. Other Books You May Enjoy

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Appendix – Microservices Architecture with Dapr

Autoscaling with KEDA

So far, we've learned that the HPA is triggered by the CPU and memory metrics of the Pods in a deployment.

Kubernetes-based Event-Driven Autoscaling (KEDA) is a Cloud-Native Computing Foundation (CNCF) project, with the objective of extending the capabilities of the Kubernetes HPA so that it reacts to the metrics of resources that are external to the Kubernetes cluster.

You can learn more about KEDA (https://keda.sh/) in the context of Dapr at https://docs.dapr.io/developing-applications/integrations/autoscale-keda/.

Considering the vast adoption of the publish/subscribe Dapr building block in our example, it would be smart to increase (and decrease) the number of Pods based on the messages accumulating in the underlying messaging system, which is Azure Service Bus in our case. If the number of enqueued messages grows, we could add more Pods so that Dapr dequeues the messages and our ASP.NET Core code processes the requests.

In more general terms...

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Authors (1)

Davide Bedin

Davide Bedin

Davide Bedin is a cloud-native architecture enthusiast, with strong and relevant experience with cloud platforms. As CTO of an ISV, Davide led its significant transformational process with the objective of creating new solutions based on the Microsoft Azure cloud. Davide particularly focused on the evolution of distributed computing to service-oriented architectures, and ultimately microservices, spending most of his developer career creating web services. As a Cloud Solution Architect at Microsoft, Davide is responsible for the guidance and support of enterprise customers in embracing the cloud paradigm, a key enabler of their digital transformation; lately, he also plays with Dapr.

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